Pressure Tanks

Pressure tanks deliver steady water pressure, protect pumps, and store usable water for homes, cabins, farms, and light commercial properties. Whether supplied by a well pump or a booster system, a properly sized tank reduces pump cycling, lowers energy use, and extends pump life while cutting water hammer and pressure swings.

Most options are pre-charged diaphragm or bladder tanks that keep water and air separated to prevent waterlogging. Traditional galvanized air-over-water tanks are still available for simple systems and easy air charging. Choose from steel or corrosion-resistant composite shells, vertical or horizontal configurations, and sizes ranging from compact 2–20 gallon units to large 44–120 gallon tanks and beyond.

Sizing is straightforward: match the tank’s drawdown to your pump flow and household demand. Aim for 1–2 minutes of pump runtime per cycle. For typical 30/50 or 40/60 PSI settings, check the manufacturer’s drawdown chart and pre-charge the tank 2 psi below the cut-in pressure. Bigger drawdown means fewer cycles, quieter operation, and more consistent showers.

Helpful features include replaceable butyl bladders, stainless-steel water connections, multiple ports for gauges and relief valves, and certifications such as NSF/ANSI 61 or ASME for commercial jobs. Install with an isolation valve, pressure switch, gauge, pressure relief valve, drain, and unions for service. Place the tank on a level surface, protect from freezing, and follow local plumbing codes.

Maintenance is minimal: verify air charge annually, inspect for leaks, and watch for rapid cycling or fluctuating pressure—signs the air side needs attention or the bladder has failed. Pressure tanks support well water systems, irrigation, rainwater harvesting, and point-of-use applications like reverse osmosis storage. Shop by capacity, drawdown, material, and port layout to build a reliable, high-performance plumbing system. Pair with a constant-pressure VFD for advanced control. Confirm check valve placement and log pressure settings right after installation.